Introduction
Halls of stone or HoS as its commonly called, is located in the titan vault of Ulduar at the top of the zone of Storm Peaks. Halls of Stone is like most Northrend instances it is a 5-man with a lockout period that last till 11:59 pst on heroic mode. The mobs in this instance are easy but can cause a lot of damage if pulled incorrectly.Quests
Their isn't many quests in for this zone, the one listed is to activate the Tribunal of Ages which we will get to later. Halls of StoneMaiden of Grief
There is a few tricks to kill this boss very easy. First you want to have the tank keep her where she is while healers stay near the stairs.

Every so ofter she'll cast Storm of Grief which is a giant black circle that forms on the floor much like a void zone. The tank will want to move here away from these and everyone in the circle should immediately get out of it or it will do a lot of damage.

Additionally she will cast Shock of Sorrow which is a group wide stun that lasts 10 seconds and does a couple thousand shadow damage. After this the tank will want to taunt because it acts as a aggro wipe.
This fight is mainly a tank and spank and should be easy to most groups.

Krystallus

This is a fight that is slimier to Gruul the Dragonkiller. One of his main abilities is Ground slam which knocks everyone in the raid back. After this knock back he will turn everyone to stone and then shatter them doing damage to the player and anyone around the player.

Next is a ground spike which is just as it sounds a giant spike comes under a player and does damage to them, i am not sure at this moment if it also knocks you in the air. Lastly he has boulder toss which hits a player for very little damage(around 3-4k on cloth). Like the Maiden of Grief he is mostly a tank and spank.

Tribunal of Ages

After a few mobs you will come to Brann Bronzebeard who is your key to the next "boss". It is best to clear the room after his little camp first before you talk to him to insure safe passage. If everyone in the group has completed Halls of Stone just simply talk to him to move on. If someone has not finished the quest remember to get them to pick it up before you talk to Brann because it wont be available once you talk to him.

Once you made it into the room with the three giant heads the fight will begin. This fight consists of keeping Brann alive from the attacking dwarfs. These will come in waves with decreasing time between them. Other than the attackers you will have to worry about the faces on the walls, because they will each do a different type of attack. The first face which is on the right of the entrance of the room, will fire Bolt of the Tribunal with will target a random player and deal 500 arcane damage to them, this will fire every about three seconds.

After a few more waves the next head will activate which is the one on the left of the room. This face will fire Dark matter which looks like a shadowy orb and a random player causing a debuff that increases damage taken by 50% on normal and 100% on heroic.

After a few more waves the last face will activate. This face does Searing Gaze which targets a random spot on the floor near a player and cause near 500 damage per second on normal and near 2000 damage per second on heroic for 10 seconds.

Once the waves stops you have completed this boss and the quest. You can stay for some lore at this point or talk to Brann who will tell you to meet him near the entrance of the instance. This boss can get very complicated at sometimes and very painful if all thee faces target the same person.

Sjonnir The Ironshaper
Once you talked to Brann and walked back to near the beginning of the instance talk to him again and he will open the door that you might have noticed at the beginning that was shut. Inside you will find the final boss of Halls of Stone Sjonnir The Ironshaper.

At the start of the fight Brann will run behind the boss and try to access the panel.
Sjonnir starts with a buff on him that has a 50% chance to cause 1000 damage on normal or 3000 damage on heroic to any attacker. It is recommended this is despelled or spellstealed off of him. Next he does Lightning ring which does around 1000 damage to anyone close to him. Lastly he does a chain lightning which does around 1000-2000 damage to a player and arcs up to 3 nearby players.

Throughout this fight troggs and blobbs spawn in the forges on the sides of the platform. These dont pose that big of a threat, though they can be offtanked by near any melee class. Near the end of the fight Brann will join in the fight and help kill Sjonnir.

I hope you all enjoyed this guide. Please leave a comment if you find something wrong i will be glad to fix it. Also pictures are coming soon for some reason my computer messes up when i put a picture in.

Edits: Spaced out the guide a little so its more readable. still couldn't get the pictures in. More to come soon

Comments

Thanks for the comments, I'm working on editing this one a little to make it more readable :)I should have this done by the end of the day...
Also im planning on rerunning this place today on my main to see if theres something i need to fix with the spells or anything like that.

This looks like a decent guide for beginners. However, it could do with some more formatting to improve readability - big blocks of text are hard to read and it's difficult to find the important information.

Additionally, some more advanced tactics, particularly advice for getting the achievements, would make this guide useful to others than just those who have never run the instance before.

All in all, it's a good first guide. I hope you continue to work on it and improve it!

You said at the bottom that you tried to put images in, but your computer messes up. Is it possible that the pictures are too big (pixels) and that is why it isnt working? If so use the tag [ img=300x300 ] or some similar size (300x300 designates the image size in pixels). Also if you uploaded the pictures to the site check there are no spaces in the file name, as this mucks up the code and it doesn't work.